After some time I see the solution in Stack overflow. For some reason I have this code in a swift file: extension UILabel { override open func draw(rect: CGRect) {} override open var intrinsicContentSize: CGSize {} } That was the problem, I got rid off and everything works perfect!

I have the same problem but adding the code to remove SharedWorkers is working fine.

Thank you for your response @JoachimKurz, in the lane App Lifecycle, there is no data. I only see the Lifecycle selecting the main process.

In the Organizer window on Xcode I have this in the right side of the window: Crash Log DetailsBinary	 The name of the App Thread	 0 iOS 14.2 (18B92) Device iPhone 4 Crash Log DetailsBinary	 The name of the App Thread	 0 iOS 14.2.1 (18B121) Device iPhone 4 This is the log: Crash Log - https://developer.apple.com/forums/content/attachment/7ff5caf7-c142-4faa-ba45-9524f16e1d7b

Yes, I agree with it. I also change the url with a custom backend that is fetching live data from the server and is 6 - 10 seconds before to show the web content into the web view. 2020-11-25 09:10:11 +0000 2020-11-25 09:10:16 +0000 2020-11-25 09:10:25 +0000 2020-11-25 09:10:31 +0000 2020-11-25 09:10:56 +0000 2020-11-25 09:11:10 +0000 I tested on the simulator and also in different devices with LTE connection. Do you think the server could be the reason or the code or the internet connection?